# NTSB investigations, HI: Part(s) separation from AC

NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports.

## Latest cases

- [NTSB ANC25LA028](https://openairdocs.org/ntsb/ANC25LA028.md): Piper PA-28-140 · Royal Kunia, HI · Accident · Minor injuries · Class 3 · Limited · Final report · Mar 27, 2025 · N261FC · Substantial damage
  > Improper alteration of the crankshaft propeller flange at an unknown time, which resulted in an in-flight separation of the propeller assembly.
- [NTSB ANC24FA063](https://openairdocs.org/ntsb/ANC24FA063.md): Robinson Helicopter R44 · Kekaha, HI · Accident · 3 fatal · Class 3 · Field · Final report · Jul 11, 2024 · N144KW · Substantial damage
  > An encounter with turbulence due to downdraft winds that resulted in mast bumping and an in-flight breakup.
- [NTSB ANC22FA041](https://openairdocs.org/ntsb/ANC22FA041.md): Bell 407 · Kalea, HI · Accident · Serious injuries · Class 3 · Field · Final report · Jun 9, 2022 · N402SH · Substantial damage
  > The in-flight separation of the tail boom as a result of abnormal loading and fracture of the upper-left tail boom attachment bolt due to a gap between the upper-left longeron and aft fuselage bulkhead.
- [NTSB WPR19LA028](https://openairdocs.org/ntsb/WPR19LA028.md): Bell 430 · Kailua, HI · Accident · No injuries · Class 3 · Limited · Final report · Oct 27, 2018 · N430ST · Substantial damage
  > The separation of one of the tail rotors blades’ root enclosures due to improper repair.
- [NTSB WPR18TA239](https://openairdocs.org/ntsb/WPR18TA239.md): Eurocopter EC130 · Hilo, HI · Accident · Minor injuries · Class 3 · Final report · Aug 19, 2018 · N11QP · Substantial damage
  > The separation of the left sliding door in flight after it opened for reasons that could not be determined based on the available evidence, which resulted in damage to the main rotor blades.
- [NTSB WPR18LA221](https://openairdocs.org/ntsb/WPR18LA221.md): Hughes 369 · Honolulu, HI · Accident · No injuries · Class 2 · Limited · Final report · Aug 8, 2018 · N369MH · Substantial damage
  > The operator's improper installation of the tail rotor (TR) teeter bearings, which resulted in cascading in-flight failures of the TR components and attach hardware.
- [NTSB GAA17CA179](https://openairdocs.org/ntsb/GAA17CA179.md): Burkhart Grob G 109B · Mokuleia, HI · Accident · No injuries · Data collection · Final report · Mar 8, 2017 · N109FH · Substantial damage
  > The failure of the upper rudder hinge during flight due to severe corrosion. Contributing to the accident were the pilot’s inadequate preflight inspection and the lack of an annual inspection.

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT c."ntsbNumber", c."eventDate", c."eventType", c."eventCity", c."eventStateOrRegion", a.n_number, a."aircraftMake", a."aircraftModel", c."highestInjuryLevel", c."totalFatal", c."completionStatus", c.report_url
FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c."mKey" AND a.position = 1
WHERE c."eventStateOrRegion" = 'HI' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '338' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent"))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/338/sequence?state=HI

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